Oh Fiona, I would have strangled him! (Or made him wear a gag). At least mine brought it up unintentionally (we were talking about ambulance response times, as you do, and he brought it up in that context), but he shut up as soon as he realised that he'd put his foot in his mouth! My dad's an ambo and my mum works in a hospital (and I used to), so we are fairly relaxed about most gory details, but there is a limit.

My mum happened to be visiting at the time and was asleep - my partner had to poke her to wake her up to tell her that we were going into hospital - she sat bolt upright thinking that I'd gone into early labour, DP told her not to worry and she rolled over and went straight back to sleep! The next day she asked if everything was OK and pretty much left it at that. Phew...